Xay Dung Hoang Mai - QN Joint Stock Company Address: Civil Group 5, Khu 6, Gieng Day Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701714957 Phone: 0357769094 Representative: Mai Trung Quy Adress: Civil Group 5, Khu 6, Gieng Day Ward, Ha Long City, Quang Ninh Province Gieng Day Ward, Ha Long City, Quang Ninh ProvinceFounding date: 23 - 6 - 2014